FV520B Martensitic Aging Steel - Forge piece - Special Steel Stockist
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FV520B Martensitic Aging Steel
2015-02-09 13:54:04   Origin:   Remark:0 Click:

FV520B typical applications include pump shafts, impellers, fasteners, FV520B fans, valves, hydraulic equipment used in oil and gas industries, steam turbine blades
 
Stock available: Round bar Dia.30 ~ 150mm, ESR ingot

MATERIAL DESIGNATION - FV520B
MATERIAL CATEGORY: Precipitation hardening martensitic stainless steel
DENSITY: 7.80kg/dm
MATERIAL SPECIFICATIONS: DIN EN 10088 - 1
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / EAF / EF followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied under annealed condition.
Final heat treatment - solution treatment + Aged.
CHEMICAL COMPOSITIONS (mass fraction - %)
Carbon, C (%): ≤ 0.07
Silicon, Si (%): ≤ 0.70
Manganese, Mn (%): ≤ 1.00
Phosphorus, P (%) ≤: 0.035
Sulfur, S (%) ≤: 0.025
Chromium, Cr (%): 13.0 ~ 15.0
Nickel, Ni (%): 5.00 ~ 6.50
Molybdenum, Mo (%): 1.20 ~ 2.00
Copper, Cu 1.20 ~ 2.00, Niobium, Nb 0.20 ~ 0.70 
MECHANICAL PROPERTIES UNDER ROOM TEMP.
PROFILE: Round bar, Flat bar, Plate
Condition: double overaged, colution treated 1050º C +2 hours, 750-850 ºC,+2 hours 750-850 ºC
Proof stress (N/mm²): 800
Tensile strength, Rm / MPa: 925 ~ 1035
Yield strength, Rp0.2 / MPa: 775
Elongation, A5 (%): 15.0
Hardness | HB:   277 ~ 341
Impact strength, AKv /Min: 54
TYPICAL APPLICATIONS
Typical applications include pump shafts, impellers, fasteners, fans, valves, hydraulic equipment used in oil and gas industries, petrochemical, marine and nuclear engineering, and aircraft components.
PROFILE & DIMENSION
Round bar / rod / disc (diameter): 5.5mm to 600mm
Square bar / flat bar: 10mm to 600mm
Plate / Sheet steel / Steel strip: 0.1mm to 300mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, and other different shapes based on OEM.  

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